/* $Id$ */ /* * Copyright (c) 2008 Kristaps Dzonsons * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the * above copyright notice and this permission notice appear in all * copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include "private.h" /* FIXME: .Bl -diag can't have non-text children in HEAD. */ /* * Pre- and post-validate macros as they're parsed. Pre-validation * occurs when the macro has been detected and its arguments parsed. * Post-validation occurs when all child macros have also been parsed. * In the ELEMENT case, this is simply the parameters of the macro; in * the BLOCK case, this is the HEAD, BODY, TAIL and so on. */ #define PRE_ARGS struct mdoc *mdoc, const struct mdoc_node *n #define POST_ARGS struct mdoc *mdoc typedef int (*v_pre)(PRE_ARGS); typedef int (*v_post)(POST_ARGS); /* TODO: ignoring Pp (it's superfluous in some invocations). */ struct valids { v_pre *pre; v_post *post; }; /* Utility checks. */ static int check_parent(PRE_ARGS, int, enum mdoc_type); static int check_msec(PRE_ARGS, ...); static int check_sec(PRE_ARGS, ...); static int check_stdarg(PRE_ARGS); static int check_text(struct mdoc *, int, int, const char *); static int check_argv(struct mdoc *, const struct mdoc_node *, const struct mdoc_arg *); static int err_child_lt(struct mdoc *, const char *, int); static int warn_child_lt(struct mdoc *, const char *, int); static int err_child_gt(struct mdoc *, const char *, int); static int warn_child_gt(struct mdoc *, const char *, int); static int err_child_eq(struct mdoc *, const char *, int); static int warn_child_eq(struct mdoc *, const char *, int); /* Utility auxiliaries. */ static inline int count_child(struct mdoc *); static inline int warn_count(struct mdoc *, const char *, int, const char *, int); static inline int err_count(struct mdoc *, const char *, int, const char *, int); /* Specific pre-child-parse routines. */ static int pre_an(PRE_ARGS); static int pre_bd(PRE_ARGS); static int pre_bl(PRE_ARGS); static int pre_cd(PRE_ARGS); static int pre_dd(PRE_ARGS); static int pre_display(PRE_ARGS); static int pre_dt(PRE_ARGS); static int pre_er(PRE_ARGS); static int pre_ex(PRE_ARGS); static int pre_fd(PRE_ARGS); static int pre_it(PRE_ARGS); static int pre_lb(PRE_ARGS); static int pre_os(PRE_ARGS); static int pre_prologue(PRE_ARGS); static int pre_rv(PRE_ARGS); static int pre_sh(PRE_ARGS); static int pre_ss(PRE_ARGS); /* Specific post-child-parse routines. */ static int herr_ge1(POST_ARGS); static int hwarn_le1(POST_ARGS); static int herr_eq0(POST_ARGS); static int eerr_eq0(POST_ARGS); static int eerr_le1(POST_ARGS); static int eerr_le2(POST_ARGS); static int eerr_eq1(POST_ARGS); static int eerr_ge1(POST_ARGS); static int ewarn_eq0(POST_ARGS); static int ewarn_eq1(POST_ARGS); static int bwarn_ge1(POST_ARGS); static int hwarn_eq1(POST_ARGS); static int ewarn_ge1(POST_ARGS); static int ebool(POST_ARGS); static int post_an(POST_ARGS); static int post_at(POST_ARGS); static int post_bf(POST_ARGS); static int post_bl(POST_ARGS); static int post_ex(POST_ARGS); static int post_it(POST_ARGS); static int post_nm(POST_ARGS); static int post_root(POST_ARGS); static int post_sh(POST_ARGS); static int post_sh_body(POST_ARGS); static int post_sh_head(POST_ARGS); static int post_st(POST_ARGS); /* Collections of pre-child-parse routines. */ static v_pre pres_an[] = { pre_an, NULL }; static v_pre pres_bd[] = { pre_display, pre_bd, NULL }; static v_pre pres_bl[] = { pre_bl, NULL }; static v_pre pres_cd[] = { pre_cd, NULL }; static v_pre pres_dd[] = { pre_prologue, pre_dd, NULL }; static v_pre pres_d1[] = { pre_display, NULL }; static v_pre pres_dt[] = { pre_prologue, pre_dt, NULL }; static v_pre pres_er[] = { pre_er, NULL }; static v_pre pres_ex[] = { pre_ex, NULL }; static v_pre pres_fd[] = { pre_fd, NULL }; static v_pre pres_it[] = { pre_it, NULL }; static v_pre pres_lb[] = { pre_lb, NULL }; static v_pre pres_os[] = { pre_prologue, pre_os, NULL }; static v_pre pres_rv[] = { pre_rv, NULL }; static v_pre pres_sh[] = { pre_sh, NULL }; static v_pre pres_ss[] = { pre_ss, NULL }; /* Collections of post-child-parse routines. */ static v_post posts_bool[] = { eerr_eq1, ebool, NULL }; static v_post posts_bd[] = { herr_eq0, bwarn_ge1, NULL }; static v_post posts_text[] = { eerr_ge1, NULL }; static v_post posts_wtext[] = { ewarn_ge1, NULL }; static v_post posts_notext[] = { eerr_eq0, NULL }; static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL }; static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL }; static v_post posts_bl[] = { herr_eq0, bwarn_ge1, post_bl, NULL }; static v_post posts_it[] = { post_it, NULL }; static v_post posts_in[] = { ewarn_eq1, NULL }; static v_post posts_ss[] = { herr_ge1, NULL }; static v_post posts_pf[] = { eerr_eq1, NULL }; static v_post posts_lb[] = { eerr_eq1, NULL }; static v_post posts_st[] = { eerr_eq1, post_st, NULL }; static v_post posts_pp[] = { ewarn_eq0, NULL }; static v_post posts_ex[] = { eerr_le1, post_ex, NULL }; static v_post posts_an[] = { post_an, NULL }; static v_post posts_at[] = { post_at, NULL }; static v_post posts_xr[] = { eerr_ge1, eerr_le2, NULL }; static v_post posts_nm[] = { post_nm, NULL }; static v_post posts_bf[] = { hwarn_le1, post_bf, NULL }; static v_post posts_rs[] = { herr_eq0, bwarn_ge1, NULL }; static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL }; static v_post posts_bk[] = { herr_eq0, bwarn_ge1, NULL }; static v_post posts_fd[] = { ewarn_ge1, NULL }; /* Per-macro pre- and post-child-check routine collections. */ const struct valids mdoc_valids[MDOC_MAX] = { { NULL, NULL }, /* \" */ { pres_dd, posts_text }, /* Dd */ { pres_dt, NULL }, /* Dt */ { pres_os, NULL }, /* Os */ { pres_sh, posts_sh }, /* Sh */ { pres_ss, posts_ss }, /* Ss */ { NULL, posts_pp }, /* Pp */ { pres_d1, posts_wline }, /* D1 */ { pres_d1, posts_wline }, /* Dl */ { pres_bd, posts_bd }, /* Bd */ { NULL, NULL }, /* Ed */ { pres_bl, posts_bl }, /* Bl */ { NULL, NULL }, /* El */ { pres_it, posts_it }, /* It */ { NULL, posts_text }, /* Ad */ { pres_an, posts_an }, /* An */ { NULL, NULL }, /* Ar */ { pres_cd, posts_text }, /* Cd */ { NULL, NULL }, /* Cm */ { NULL, posts_text }, /* Dv */ { pres_er, posts_text }, /* Er */ { NULL, posts_text }, /* Ev */ { pres_ex, posts_ex }, /* Ex */ { NULL, posts_text }, /* Fa */ { pres_fd, posts_fd }, /* Fd */ { NULL, NULL }, /* Fl */ { NULL, posts_text }, /* Fn */ { NULL, posts_wtext }, /* Ft */ { NULL, posts_text }, /* Ic */ { NULL, posts_in }, /* In */ { NULL, posts_text }, /* Li */ { NULL, posts_wtext }, /* Nd */ { NULL, posts_nm }, /* Nm */ { NULL, posts_wline }, /* Op */ { NULL, NULL }, /* Ot */ { NULL, NULL }, /* Pa */ { pres_rv, posts_notext }, /* Rv */ { NULL, posts_st }, /* St */ { NULL, posts_text }, /* Va */ { NULL, posts_text }, /* Vt */ { NULL, posts_xr }, /* Xr */ { NULL, posts_text }, /* %A */ { NULL, posts_text }, /* %B */ { NULL, posts_text }, /* %D */ { NULL, posts_text }, /* %I */ { NULL, posts_text }, /* %J */ { NULL, posts_text }, /* %N */ { NULL, posts_text }, /* %O */ { NULL, posts_text }, /* %P */ { NULL, posts_text }, /* %R */ { NULL, posts_text }, /* %T */ { NULL, posts_text }, /* %V */ { NULL, NULL }, /* Ac */ { NULL, NULL }, /* Ao */ { NULL, posts_wline }, /* Aq */ { NULL, posts_at }, /* At */ { NULL, NULL }, /* Bc */ { NULL, posts_bf }, /* Bf */ { NULL, NULL }, /* Bo */ { NULL, posts_wline }, /* Bq */ { NULL, NULL }, /* Bsx */ { NULL, NULL }, /* Bx */ { NULL, posts_bool }, /* Db */ { NULL, NULL }, /* Dc */ { NULL, NULL }, /* Do */ { NULL, posts_wline }, /* Dq */ { NULL, NULL }, /* Ec */ { NULL, NULL }, /* Ef */ { NULL, posts_text }, /* Em */ { NULL, NULL }, /* Eo */ { NULL, NULL }, /* Fx */ { NULL, posts_text }, /* Ms */ { NULL, posts_notext }, /* No */ { NULL, posts_notext }, /* Ns */ { NULL, NULL }, /* Nx */ { NULL, NULL }, /* Ox */ { NULL, NULL }, /* Pc */ { NULL, posts_pf }, /* Pf */ { NULL, NULL }, /* Po */ { NULL, posts_wline }, /* Pq */ { NULL, NULL }, /* Qc */ { NULL, posts_wline }, /* Ql */ { NULL, NULL }, /* Qo */ { NULL, posts_wline }, /* Qq */ { NULL, NULL }, /* Re */ { NULL, posts_rs }, /* Rs */ { NULL, NULL }, /* Sc */ { NULL, NULL }, /* So */ { NULL, posts_wline }, /* Sq */ { NULL, posts_bool }, /* Sm */ { NULL, posts_text }, /* Sx */ { NULL, posts_text }, /* Sy */ { NULL, posts_text }, /* Tn */ { NULL, NULL }, /* Ux */ { NULL, NULL }, /* Xc */ { NULL, NULL }, /* Xo */ { NULL, posts_fo }, /* Fo */ { NULL, NULL }, /* Fc */ { NULL, NULL }, /* Oo */ { NULL, NULL }, /* Oc */ { NULL, posts_bk }, /* Bk */ { NULL, NULL }, /* Ek */ { NULL, posts_notext }, /* Bt */ { NULL, NULL }, /* Hf */ { NULL, NULL }, /* Fr */ { NULL, posts_notext }, /* Ud */ { pres_lb, posts_lb }, /* Lb */ }; int mdoc_valid_pre(struct mdoc *mdoc, const struct mdoc_node *node) { v_pre *p; struct mdoc_arg *argv; size_t argc; int line, pos, i, j; const char *tp; if (MDOC_TEXT == node->type) { tp = node->data.text.string; line = node->line; pos = node->pos; return(check_text(mdoc, line, pos, tp)); } if (MDOC_BLOCK == node->type || MDOC_ELEM == node->type) { argv = MDOC_BLOCK == node->type ? node->data.block.argv : node->data.elem.argv; argc = MDOC_BLOCK == node->type ? node->data.block.argc : node->data.elem.argc; for (i = 0; i < (int)argc; i++) { for (j = 0; j < (int)argv[i].sz; j++) { tp = argv[i].value[j]; line = argv[i].line; pos = argv[i].pos; if ( ! check_text(mdoc, line, pos, tp)) return(0); } if ( ! check_argv(mdoc, node, &argv[i])) return(0); } } if (NULL == mdoc_valids[node->tok].pre) return(1); for (p = mdoc_valids[node->tok].pre; *p; p++) if ( ! (*p)(mdoc, node)) return(0); return(1); } int mdoc_valid_post(struct mdoc *mdoc) { v_post *p; /* * This check occurs after the macro's children have been filled * in: postfix validation. Since this happens when we're * rewinding the scope tree, it's possible to have multiple * invocations (as by design, for now), we set bit MDOC_VALID to * indicate that we've validated. */ if (MDOC_VALID & mdoc->last->flags) return(1); mdoc->last->flags |= MDOC_VALID; if (MDOC_TEXT == mdoc->last->type) return(1); if (MDOC_ROOT == mdoc->last->type) return(post_root(mdoc)); if (NULL == mdoc_valids[mdoc->last->tok].post) return(1); for (p = mdoc_valids[mdoc->last->tok].post; *p; p++) if ( ! (*p)(mdoc)) return(0); return(1); } static inline int warn_count(struct mdoc *m, const char *k, int want, const char *v, int has) { return(mdoc_warn(m, WARN_SYNTAX, "suggests %s %s %d (has %d)", v, k, want, has)); } static inline int err_count(struct mdoc *m, const char *k, int want, const char *v, int has) { return(mdoc_err(m, "requires %s %s %d (has %d)", v, k, want, has)); } static inline int count_child(struct mdoc *mdoc) { int i; struct mdoc_node *n; for (i = 0, n = mdoc->last->child; n; n = n->next, i++) /* Do nothing */ ; return(i); } /* * Build these up with macros because they're basically the same check * for different inequalities. Yes, this could be done with functions, * but this is reasonable for now. */ #define CHECK_CHILD_DEFN(lvl, name, ineq) \ static int \ lvl##_child_##name(struct mdoc *mdoc, const char *p, int sz) \ { \ int i; \ if ((i = count_child(mdoc)) ineq sz) \ return(1); \ return(lvl##_count(mdoc, #ineq, sz, p, i)); \ } #define CHECK_BODY_DEFN(name, lvl, func, num) \ static int \ b##lvl##_##name(POST_ARGS) \ { \ if (MDOC_BODY != mdoc->last->type) \ return(1); \ return(func(mdoc, "multiline parameters", (num))); \ } #define CHECK_ELEM_DEFN(name, lvl, func, num) \ static int \ e##lvl##_##name(POST_ARGS) \ { \ assert(MDOC_ELEM == mdoc->last->type); \ return(func(mdoc, "line parameters", (num))); \ } #define CHECK_HEAD_DEFN(name, lvl, func, num) \ static int \ h##lvl##_##name(POST_ARGS) \ { \ if (MDOC_HEAD != mdoc->last->type) \ return(1); \ return(func(mdoc, "line parameters", (num))); \ } CHECK_CHILD_DEFN(warn, gt, >) /* warn_child_gt() */ CHECK_CHILD_DEFN(err, gt, >) /* err_child_gt() */ CHECK_CHILD_DEFN(warn, eq, ==) /* warn_child_eq() */ CHECK_CHILD_DEFN(err, eq, ==) /* err_child_eq() */ CHECK_CHILD_DEFN(err, lt, <) /* err_child_lt() */ CHECK_CHILD_DEFN(warn, lt, <) /* warn_child_lt() */ CHECK_BODY_DEFN(ge1, warn, warn_child_gt, 0) /* bwarn_ge1() */ CHECK_ELEM_DEFN(eq1, warn, warn_child_eq, 1) /* ewarn_eq1() */ CHECK_ELEM_DEFN(eq0, warn, warn_child_eq, 0) /* ewarn_eq0() */ CHECK_ELEM_DEFN(ge1, warn, warn_child_gt, 0) /* ewarn_gt1() */ CHECK_ELEM_DEFN(eq1, err, err_child_eq, 1) /* eerr_eq1() */ CHECK_ELEM_DEFN(le2, err, err_child_lt, 3) /* eerr_le2() */ CHECK_ELEM_DEFN(le1, err, err_child_lt, 2) /* eerr_le1() */ CHECK_ELEM_DEFN(eq0, err, err_child_eq, 0) /* eerr_eq0() */ CHECK_ELEM_DEFN(ge1, err, err_child_gt, 0) /* eerr_ge1() */ CHECK_HEAD_DEFN(eq0, err, err_child_eq, 0) /* herr_eq0() */ CHECK_HEAD_DEFN(le1, warn, warn_child_lt, 2) /* hwarn_le1() */ CHECK_HEAD_DEFN(ge1, err, err_child_gt, 0) /* herr_ge1() */ CHECK_HEAD_DEFN(eq1, warn, warn_child_eq, 1) /* hwarn_eq1() */ static int check_stdarg(PRE_ARGS) { if (MDOC_Std == n->data.elem.argv[0].arg && 1 == n->data.elem.argc) return(1); return(mdoc_nwarn(mdoc, n, WARN_COMPAT, "one argument suggested")); } static int check_sec(PRE_ARGS, ...) { enum mdoc_sec sec; va_list ap; va_start(ap, n); for (;;) { if (SEC_CUSTOM == (sec = va_arg(ap, enum mdoc_sed))) break; if (sec != mdoc->lastsec) continue; va_end(ap); return(1); } va_end(ap); return(mdoc_nwarn(mdoc, n, WARN_COMPAT, "inappropriate document section for macro")); } static int check_msec(PRE_ARGS, ...) { va_list ap; int msec; va_start(ap, n); for (;;) { if (0 == (msec = va_arg(ap, int))) break; if (msec != mdoc->meta.msec) continue; va_end(ap); return(1); } va_end(ap); return(mdoc_nwarn(mdoc, n, WARN_COMPAT, "inappropriate manual section for macro")); } /* * Check over an argument. When this has more stuff in it, make this * into a table-driven function; until then, a switch is fine. */ static int check_argv(struct mdoc *mdoc, const struct mdoc_node *node, const struct mdoc_arg *argv) { switch (argv->arg) { case (MDOC_Std): switch (node->tok) { case (MDOC_Ex): /* * If the -std does not have an argument, then * set it with the default name (if set). This * only happens with MDOC_Ex. */ if (1 == argv->sz) return(1); assert(0 == argv->sz); if (mdoc->meta.name) return(1); return(mdoc_nerr(mdoc, node, "default name not yet set")); default: break; } break; default: break; } return(1); } static int check_text(struct mdoc *mdoc, int line, int pos, const char *p) { size_t c; /* XXX - indicate deprecated escapes \*(xx and \*x. */ for ( ; *p; p++) { if ( ! isprint((u_char)*p) && '\t' != *p) return(mdoc_perr(mdoc, line, pos, "invalid non-printing characters")); if ('\\' != *p) continue; if ((c = mdoc_isescape(p))) { p += (int)c - 1; continue; } return(mdoc_perr(mdoc, line, pos, "invalid escape sequence")); } return(1); } static int check_parent(PRE_ARGS, int tok, enum mdoc_type t) { assert(n->parent); if ((MDOC_ROOT == t || tok == n->parent->tok) && (t == n->parent->type)) return(1); return(mdoc_nerr(mdoc, n, "require parent %s", MDOC_ROOT == t ? "" : mdoc_macronames[tok])); } static int pre_display(PRE_ARGS) { struct mdoc_node *node; /* Display elements (`Bd', `D1'...) cannot be nested. */ if (MDOC_BLOCK != n->type) return(1); /* LINTED */ for (node = mdoc->last->parent; node; node = node->parent) if (MDOC_BLOCK == node->type) if (MDOC_Bd == node->tok) break; if (NULL == node) return(1); return(mdoc_nerr(mdoc, n, "displays may not be nested")); } static int pre_bl(PRE_ARGS) { int type, i, width, offset; struct mdoc_arg *argv; size_t argc; if (MDOC_BLOCK != n->type) return(1); argc = n->data.block.argc; /* Make sure that only one type of list is specified. */ type = offset = width = -1; /* LINTED */ for (i = 0; i < (int)argc; i++) { argv = &n->data.block.argv[i]; switch (argv->arg) { case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): /* FALLTHROUGH */ case (MDOC_Tag): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Column): if (-1 == type) { type = argv->arg; break; } return(mdoc_perr(mdoc, argv->line, argv->pos, "multiple types specified")); case (MDOC_Width): if (-1 == width) { width = argv->arg; break; } return(mdoc_perr(mdoc, argv->line, argv->pos, "multiple -%s arguments", mdoc_argnames[MDOC_Width])); case (MDOC_Offset): if (-1 == offset) { offset = argv->arg; break; } return(mdoc_perr(mdoc, argv->line, argv->pos, "multiple -%s arguments", mdoc_argnames[MDOC_Offset])); default: break; } } if (-1 == type) return(mdoc_err(mdoc, "no type specified")); switch (type) { case (MDOC_Column): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Inset): /* FALLTHROUGH */ case (MDOC_Item): if (-1 == width) break; return(mdoc_nwarn(mdoc, n, WARN_SYNTAX, "superfluous -%s argument", mdoc_argnames[MDOC_Width])); case (MDOC_Tag): if (-1 == width && ! mdoc_nwarn(mdoc, n, WARN_SYNTAX, "suggest -%s argument", mdoc_argnames[MDOC_Width])) return(0); break; default: break; } return(1); } static int pre_bd(PRE_ARGS) { int type, err, i; struct mdoc_arg *argv; size_t argc; if (MDOC_BLOCK != n->type) return(1); argc = n->data.block.argc; /* Make sure that only one type of display is specified. */ /* LINTED */ for (i = 0, err = type = 0; ! err && i < (int)argc; i++) { argv = &n->data.block.argv[i]; switch (argv->arg) { case (MDOC_Ragged): /* FALLTHROUGH */ case (MDOC_Unfilled): /* FALLTHROUGH */ case (MDOC_Filled): /* FALLTHROUGH */ case (MDOC_Literal): /* FALLTHROUGH */ case (MDOC_File): if (0 == type++) break; return(mdoc_perr(mdoc, argv->line, argv->pos, "multiple types specified")); default: break; } } if (type) return(1); return(mdoc_err(mdoc, "no type specified")); } static int pre_ss(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY)); } static int pre_sh(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, -1, MDOC_ROOT)); } static int pre_it(PRE_ARGS) { if (MDOC_BLOCK != n->type) return(1); return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY)); } static int pre_an(PRE_ARGS) { if (1 >= n->data.elem.argc) return(1); return(mdoc_nerr(mdoc, n, "one argument allowed")); } static int pre_lb(PRE_ARGS) { return(check_sec(mdoc, n, SEC_LIBRARY, SEC_CUSTOM)); } static int pre_rv(PRE_ARGS) { if ( ! check_msec(mdoc, n, 2, 3, 0)) return(0); return(check_stdarg(mdoc, n)); } static int pre_ex(PRE_ARGS) { if ( ! check_msec(mdoc, n, 1, 6, 8, 0)) return(0); return(check_stdarg(mdoc, n)); } static int pre_er(PRE_ARGS) { return(check_msec(mdoc, n, 2, 0)); } static int pre_cd(PRE_ARGS) { return(check_msec(mdoc, n, 4, 0)); } static int pre_prologue(PRE_ARGS) { return(check_sec(mdoc, n, SEC_PROLOGUE, SEC_CUSTOM)); } static int pre_dt(PRE_ARGS) { if (0 == mdoc->meta.date || mdoc->meta.os) if ( ! mdoc_nwarn(mdoc, n, WARN_COMPAT, "out-of-order prologue")) return(0); if (mdoc->meta.title) if ( ! mdoc_nwarn(mdoc, n, WARN_COMPAT, "prologue re-invoked")) return(0); return(1); } static int pre_os(PRE_ARGS) { if (NULL == mdoc->meta.title || 0 == mdoc->meta.date) if ( ! mdoc_nwarn(mdoc, n, WARN_COMPAT, "out-of-order prologue")) return(0); if (mdoc->meta.os) if ( ! mdoc_nwarn(mdoc, n, WARN_COMPAT, "prologue re-invoked")) return(0); return(1); } static int pre_dd(PRE_ARGS) { if (mdoc->meta.title || mdoc->meta.os) if ( ! mdoc_nwarn(mdoc, n, WARN_COMPAT, "out-of-order prologue")) return(0); if (mdoc->meta.date) if ( ! mdoc_nwarn(mdoc, n, WARN_COMPAT, "prologue re-invoked")) return(0); return(1); } static int post_bf(POST_ARGS) { char *p; struct mdoc_node *head; if (MDOC_BLOCK != mdoc->last->type) return(1); head = mdoc->last->data.block.head; if (0 == mdoc->last->data.block.argc) { if (NULL == head->child) return(mdoc_err(mdoc, "argument expected")); p = head->child->data.text.string; if (xstrcmp(p, "Em")) return(1); else if (xstrcmp(p, "Li")) return(1); else if (xstrcmp(p, "Sm")) return(1); return(mdoc_nerr(mdoc, head->child, "invalid font")); } if (head->child) return(mdoc_err(mdoc, "argument expected")); if (1 == mdoc->last->data.block.argc) return(1); return(mdoc_err(mdoc, "argument expected")); } static int post_nm(POST_ARGS) { if (mdoc->last->child) return(1); if (mdoc->meta.name) return(1); return(mdoc_err(mdoc, "not yet invoked with name")); } static int post_at(POST_ARGS) { if (NULL == mdoc->last->child) return(1); if (mdoc_a2att(mdoc->last->child->data.text.string)) return(1); return(mdoc_err(mdoc, "require valid AT&T symbol")); } static int post_an(POST_ARGS) { if (0 != mdoc->last->data.elem.argc) { if (NULL == mdoc->last->child) return(1); return(mdoc_err(mdoc, "argument(s) expected")); } if (mdoc->last->child) return(1); return(mdoc_err(mdoc, "argument(s) expected")); } static int post_ex(POST_ARGS) { if (0 == mdoc->last->data.elem.argc) { if (mdoc->last->child) return(1); return(mdoc_err(mdoc, "argument(s) expected")); } if (mdoc->last->child) return(mdoc_err(mdoc, "argument(s) expected")); if (1 != mdoc->last->data.elem.argc) return(mdoc_err(mdoc, "argument(s) expected")); if (MDOC_Std != mdoc->last->data.elem.argv[0].arg) return(mdoc_err(mdoc, "argument(s) expected")); return(1); } static int post_it(POST_ARGS) { int type, sv, i; #define TYPE_NONE (0) #define TYPE_BODY (1) #define TYPE_HEAD (2) #define TYPE_OHEAD (3) size_t argc; struct mdoc_node *n; if (MDOC_BLOCK != mdoc->last->type) return(1); n = mdoc->last->parent->parent; argc = n->data.block.argc; type = TYPE_NONE; sv = -1; /* Some types require block-head, some not. */ /* LINTED */ for (i = 0; TYPE_NONE == type && i < (int)argc; i++) switch (n->data.block.argv[i].arg) { case (MDOC_Tag): /* FALLTHROUGH */ case (MDOC_Diag): /* FALLTHROUGH */ case (MDOC_Hang): /* FALLTHROUGH */ case (MDOC_Ohang): /* FALLTHROUGH */ case (MDOC_Inset): type = TYPE_HEAD; sv = n->data.block.argv[i].arg; break; case (MDOC_Bullet): /* FALLTHROUGH */ case (MDOC_Dash): /* FALLTHROUGH */ case (MDOC_Enum): /* FALLTHROUGH */ case (MDOC_Hyphen): /* FALLTHROUGH */ case (MDOC_Item): type = TYPE_BODY; sv = n->data.block.argv[i].arg; break; case (MDOC_Column): type = TYPE_OHEAD; sv = n->data.block.argv[i].arg; break; default: break; } assert(TYPE_NONE != type); n = mdoc->last->data.block.head; if (TYPE_HEAD == type) { if (NULL == n->child) if ( ! mdoc_warn(mdoc, WARN_SYNTAX, "argument(s) suggested")) return(0); n = mdoc->last->data.block.body; if (NULL == n->child) if ( ! mdoc_warn(mdoc, WARN_SYNTAX, "multiline body suggested")) return(0); } else if (TYPE_BODY == type) { if (n->child) if ( ! mdoc_warn(mdoc, WARN_SYNTAX, "no argument suggested")) return(0); n = mdoc->last->data.block.body; if (NULL == n->child) if ( ! mdoc_warn(mdoc, WARN_SYNTAX, "multiline body suggested")) return(0); } else { if (NULL == n->child) if ( ! mdoc_warn(mdoc, WARN_SYNTAX, "argument(s) suggested")) return(0); n = mdoc->last->data.block.body; if (n->child) if ( ! mdoc_warn(mdoc, WARN_SYNTAX, "no multiline body suggested")) return(0); } if (MDOC_Column != sv) return(1); argc = mdoc->last->parent->parent->data.block.argv->sz; n = mdoc->last->data.block.head->child; for (i = 0; n; n = n->next) i++; if (i == (int)argc) return(1); return(mdoc_err(mdoc, "need %zu columns (have %d)", argc, i)); #undef TYPE_NONE #undef TYPE_BODY #undef TYPE_HEAD #undef TYPE_OHEAD } static int post_bl(POST_ARGS) { struct mdoc_node *n; if (MDOC_BODY != mdoc->last->type) return(1); if (NULL == (mdoc->last->child)) return(1); /* * Only allow `It' macros to be the immediate descendants of the * `Bl' list. */ /* LINTED */ for (n = mdoc->last->child; n; n = n->next) { if (MDOC_BLOCK == n->type) if (MDOC_It == n->tok) continue; return(mdoc_nerr(mdoc, n, "bad child of parent %s", mdoc_macronames[mdoc->last->tok])); } return(1); } static int ebool(struct mdoc *mdoc) { struct mdoc_node *n; /* LINTED */ for (n = mdoc->last->child; n; n = n->next) { if (MDOC_TEXT != n->type) break; if (xstrcmp(n->data.text.string, "on")) continue; if (xstrcmp(n->data.text.string, "off")) continue; break; } if (NULL == n) return(1); return(mdoc_nerr(mdoc, n, "expected boolean")); } static int post_root(POST_ARGS) { if (NULL == mdoc->first->child) return(mdoc_err(mdoc, "document lacks data")); if (SEC_PROLOGUE == mdoc->lastnamed) return(mdoc_err(mdoc, "document lacks prologue")); if (MDOC_BLOCK != mdoc->first->child->type) return(mdoc_err(mdoc, "lacking post-prologue %s", mdoc_macronames[MDOC_Sh])); if (MDOC_Sh != mdoc->first->child->tok) return(mdoc_err(mdoc, "lacking post-prologue %s", mdoc_macronames[MDOC_Sh])); return(1); } static int post_st(POST_ARGS) { if (mdoc_a2st(mdoc->last->child->data.text.string)) return(1); return(mdoc_warn(mdoc, WARN_SYNTAX, "invalid standard")); } static int post_sh(POST_ARGS) { if (MDOC_HEAD == mdoc->last->type) return(post_sh_head(mdoc)); if (MDOC_BODY == mdoc->last->type) return(post_sh_body(mdoc)); return(1); } static int post_sh_body(POST_ARGS) { struct mdoc_node *n; if (SEC_NAME != mdoc->lastnamed) return(1); /* * Warn if the NAME section doesn't contain the `Nm' and `Nd' * macros (can have multiple `Nm' and one `Nd'). Note that the * children of the BODY declaration can also be "text". */ if (NULL == (n = mdoc->last->child)) return(mdoc_warn(mdoc, WARN_SYNTAX, "section should have %s and %s", mdoc_macronames[MDOC_Nm], mdoc_macronames[MDOC_Nd])); for ( ; n && n->next; n = n->next) { if (MDOC_ELEM == n->type && MDOC_Nm == n->tok) continue; if (MDOC_TEXT == n->type) continue; if ( ! (mdoc_nwarn(mdoc, n, WARN_SYNTAX, "section should have %s first", mdoc_macronames[MDOC_Nm]))) return(0); } if (MDOC_ELEM == n->type && MDOC_Nd == n->tok) return(1); return(mdoc_warn(mdoc, WARN_SYNTAX, "section should have %s last", mdoc_macronames[MDOC_Nd])); } static int post_sh_head(POST_ARGS) { char buf[64]; enum mdoc_sec sec; /* * Process a new section. Sections are either "named" or * "custom"; custom sections are user-defined, while named ones * usually follow a conventional order and may only appear in * certain manual sections. */ assert(MDOC_Sh == mdoc->last->tok); (void)xstrlcpys(buf, mdoc->last->child, sizeof(buf)); sec = mdoc_atosec(buf); /* The NAME section should always be first. */ if (SEC_BODY == mdoc->lastnamed && SEC_NAME != sec) return(mdoc_warn(mdoc, WARN_SYNTAX, "section NAME should be first")); if (SEC_CUSTOM == sec) return(1); /* Check for repeated or out-of-order sections. */ if (sec == mdoc->lastnamed) return(mdoc_warn(mdoc, WARN_SYNTAX, "section repeated")); if (sec < mdoc->lastnamed) return(mdoc_warn(mdoc, WARN_SYNTAX, "section out of conventional order")); /* Check particular section/manual section conventions. */ switch (sec) { case (SEC_LIBRARY): switch (mdoc->meta.msec) { case (2): /* FALLTHROUGH */ case (3): break; default: return(mdoc_warn(mdoc, WARN_COMPAT, "section in wrong manual section")); } break; default: break; } return(1); } static int pre_fd(PRE_ARGS) { return(check_sec(mdoc, n, SEC_SYNOPSIS, SEC_CUSTOM)); }